[Bug 1917062] Re: Decryption passphrase prompt not displayed until escape is pressed (Xubuntu hirsute test case)

[Sean Davis]

To be fair, the bug was originally about the password prompt not being
displayed, with the secondary issue about the artwork.

I enabled Plymouth debugging to try to capture relevant logs, but any
time plymouth debugging was enabled, this issue did not present itself.
Disabling plymouth debugging returned to the same issue. Maybe it's
timing related?


VM configuration:
- Bionic host
- virt-manager 1:1.5.1-0ubuntu1.2
- qemu-kvm 1:2.11+dfsg-1ubuntu7.36
- 16 CPUs allocated, configured as model: EPYC-IBPB
- 4GB ram
- Single 20GB VirtIO disk stored on an SSD
- SATA CDROM where the image is being installed from
- virtio network device, bridged
- Generic PS2 mouse
- Generic PS2 keyboard
- EVTouch USB Graphics Tablet
- Display Spice: Spice server, Address, localhost only, no OpenGL
- Sound ich6
- Serial device 1: pty, /dev/pts/0
- Channel spice: spicevmc, virtio, com.redhat.spice.0
- Video QXL: 16 MiB, 1 head
- Controller PCI 0
- Controller IDE 0
- Controller VirtIO Serial 0
- Controller USB 0, USB 3
- Controller SATA 0
- USB Redirector 1, SpiceVMC
- USB Redirector 2, SpiceVMC


Installation steps:
1. Installing from Xubuntu 20210420 media
2. Click Install Xubuntu
3. Select language and Continue
4. Select Normal installation, Download updates while installing Xubuntu and Continue
5. Select Erase disk and install Xubuntu
6. Click Advanced features...
7. Select Use LVM with the new Xubuntu installation
8. Check Encrypt the new Xubuntu installation for security and OK
9. Click Install Now
10. Enter and confirm a security key and click Install Now. The following popup is displayed:
  The following partitions are going to be formatted:
  LVM VG vgxubuntu, LV root at ext4
  LVM VG vgxubuntu, LV swap_1 as swap
  partition #2 of Virtual disk 1 (vda) as ESP
11. Click Continue
12. Select timezone and Continue
13. Enter user details and Continue
14. Installation completes and device reboots
15. Following post and hidden grub, blank screen until you press Escape.

I also tried this with grub not hidden and with a timeout of 5, and with
plymouth not debugging, there is still no visible password prompt.

Without plymouth debugging, is there another log that will suffice?

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https://bugs.launchpad.net/bugs/1917062

Title:
  Decryption passphrase prompt not displayed until escape is pressed
  (Xubuntu hirsute test case)

Status in plymouth package in Ubuntu:
  Incomplete
Status in xubuntu-artwork package in Ubuntu:
  Fix Released

Bug description:
  Release: Xubuntu daily build (20210226 ISO). Testing installation with
  lvm+encryption (1451)

  SW and version: Not sure which package so reporting under cryptsetup.
  Could be plymouth?

  Expected: After a successful install with lvm+encryption, decryption
  prompt should be displayed during boot to enter passphrase.

  Actual: No prompt is displayed. If we hit 'Escape', text prompt is
  displayed and hitting 'Escape' again shows graphical prompt. This is
  main issue.

  Secondary issue with UX.
  a) on text prompt there is no space after the prompt. Not even colon.
  b) on graphical prompt no box is provided so user is confused where to click mouse button (unless it is just my (wrong) assumption, most people click on text input area first before start typing). Also either the hidden box is wrongly aligned or too large so that typed passphrase is not center-aligned below prompt text.

  Screenshots attached.

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